the Harbour Bridge is now. The line originally extended via Alfred St (now Alfred Street South), Junction St (now Pacific Highway), Blue St and Miller Sts to the engine house and depot in Ridge St. It used cable grip cars called "dummies" and un powered trailer cars.
A feature of these lines was the underground tram terminus at Wynyard railway station (the only one in Australia), and the tracks over the Sydney Harbour Bridge. Trams ran from Blue St, North Sydney over a now-demolished steel arch bridge over the Harbour Bridge Roadway, then over the eastern side of the harbour bridge (now road lanes), through a tram platform at Milsons Point railway station, before descending underground into platforms 1 and 2 of Wynyard station.
Heritage
The following buildings are on the Register of the National Estate:
� Christ Church, Walker and Lavender Streets
� Church of England Rectory, Lavender Street
� St Francis Xavier's War Memorial Church, Mackenzie Street
� St Francis Xavier's Presbytery, Mackenzie Street
� St Francis Xavier's Church School Hall, Mackenzie Street
� Chinese Christian Church, Alfred Street
� Former North Sydney Technical School (now Greenwood Hotel), Blue Street
� St Peter's Presbyterian Church and Manse, Blues Point Road
� Graythwaite, Union Street (currently under development by Shore School, the new owners, causing public outcry )
� St Thomas's Church of England, West and Church Streets
� St Thomas's Kindergarten Hall, Church and McLaren Streets
� St Thomas's Church Rectory, McLaren Street
� Don Bank, Napier Street
� North Sydney Post Office, Pacific Highway and Mount
